1. Open raspi-config with sudo raspi-config
2. Under interfacing options, enable SPI and I2C
3. Exit the raspi-config

If you want to use ssh to connect to your RPI, you can do it by writing

sudo systemctl enable ssh
sudo systemctl start ssh

Now you can connect from your own machine with ssh pi@<ip> if you are in the same network.

Let's update our system and install some needed libraries and tools.

sudo apt-get update
sudo apt-get upgrade
sudo apt-get install python3-requests python3-envirophat python3-smbus rpi.gpio

You can now try our app by starting it with

./run.sh

Then you can create a cronjob to run run.sh periodically For example add the following line to /etc/crontab to execute the script every minute

*  *	* * *	root	bash /home/pi/koodi101-iot/iot/run.sh